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Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fog

34°F

1°C

Humidity 97%
Wind Speed Calm
Barometer 29.98 in (1016.6 mb)
Dewpoint 33°F (1°C)
Visibility 0.50 mi
Last update 16 Feb 3:53 am EST
Extended Forecast for

2 Miles ENE Williamsburg PA

Dense Fog Advisory until February 16, 11:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until February 16, 11:00am

    NOW until 11:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 33 °F

    Patchy Fog

  • Washington's Birthday

    Washington's Birthday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 48. Calm wind.

    High: 48 °F

    Patchy Fog
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 54. Light west wind.

    High: 54 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after 1am. Cloudy, with a low around 39. Calm wind. Chance of precipitation is 20%.

    Low: 39 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.

    Low: 42 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain after 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.

    High: 57 °F

    Partly Sunny
    then Chance
    Rain

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 33. Calm wind.
Washington's Birthday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 48. Calm wind.
Monday Night
Mostly cloudy, with a low around 33. Calm wind.
Tuesday
Partly sunny, with a high near 54. Light west wind.
Tuesday Night
A slight chance of rain after 1am. Cloudy, with a low around 39. Calm wind. Chance of precipitation is 20%.
Wednesday
Rain likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Thursday
A chance of rain after 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Thursday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Saturday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 30%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Williamsburg PA
 40.47°N 78.18°W (Elev. 1053 ft)
Last Update:
1:05 am EST Feb 16, 2026
Forecast Valid:
4am EST Feb 16, 2026-6pm EST Feb 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation